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Spectroscopic study of plasma-facing graphite tiles modified by electron and proton irradiation
- Authors
- Kweon, Jin Jung; Lee, Kyu Won; Park, Jun Kue; Jeon, Gi-wan; Lee, Cheol Eui; Noh, S. J.; Kim, H. S.
- Issue Date
- 1-3월-2012
- Publisher
- ELSEVIER
- Keywords
- Carbon-based plasma-facing material; Graphite tile; Electron irradiation; Proton irradiation; Spectroscopy
- Citation
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, v.274, pp.145 - 147
- Indexed
- SCIE
SCOPUS
- Journal Title
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
- Volume
- 274
- Start Page
- 145
- End Page
- 147
- ISSN
- 0168-583X
- Abstract
- We have carried out Raman, electron spin resonance (ESR), and X-ray photoemission (XPS) spectroscopy measurements on the graphite tiles modified by electron and proton irradiation. While increase in local order was observed in the electron-irradiated sample, structural disorder and amorphization were revealed in the proton-irradiated sample, with much reduced electrical conductivity. Besides, a narrow ESR peak attributed to localized spins, closely associated with C-OH bonds as identified by the XPS measurements, was detected in the proton-irradiated sample. (C) 2011 Elsevier B.V. All rights reserved.
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